Debris as Filler in Concrete

Solidification of hazardous wastes in portland cement is an established practice [18] it was first done in a nuclear waste field in the 1950s [4], Portland cement has several advantages  

Portland cement has one major disadvantage some of the chemicals found in paint debris have a negative effect on the set and strength development of the cement. Lead, for example, retards the hydration of portland cement. Aluminum reacts with the cement to produce hydrogen gas, which lowers the strength and increases permeability of the cement [4]. Some interesting work has been done, however, in adding chemicals to the cement to counteract the effects of lead and other toxic metals. 

The composition of portland cement implies that, in addition to solidification, stabilization of at least some toxic metals is taking place. 

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